Mosaic floor in house of Orpheus showing dolphins. Roman ruins at Volubilis, 2nd-3rd Century AD. Volubilis, or Walili, is an archeological site in Morocco situated near Meknes between Fez and Rabat along the N13 road. Walili features the best preserved Roman ruins in this part of northern Africa. In 1997 the site was listed as a UNESCO World Heritage site. Volubilis was an important Roman town situated near the westernmost border of Roman conquests. It was built on the site of the previous Punic settlement, but that settlement overlies an earlier neolithic habitation. In Roman literature, and again in art and statuary, it is the dolphin that carries souls to the 'Islands of the Blest'.